Answer: The answer is 4 and 32.
Step-by-step explanation: Let "A", "B" and "C" represents the set of students who were taking Arabic, Bulgarian and Chinese respectively.
The, according to the given information, we have
Let 'p' represents the number of students who take all the three languages, then
Also,
From here, we get after subtracting equation(c) from (b) that
Therefore,
and from equation (a), we find
Thus,
and
Thus, the number of students who take all the three languages is 4 and the number of students who take none of the languages is 100-68 = 32.
P3.7 = 12.21 (p × 3.7 = 12.21)
p÷3.7 = 12.21÷3.7 (p÷3.7 cancels out p×3.7 and leaves you left with the equation p = 12.21÷3.7)
p=3.3
Ok so x is the original price and we want to solve if the original price was 48 so x=48. When we substitute this into the equation we get 0.75(48)-0.15(0.75x48). When we simplify this expression we get 30.6. The current price is $30.60. Hope this helps.
Answer:
144
Step-by-step explanation:
20×12=240
add 4 to 20 and 12
makes a new rectangle 24×16
24×16=384
384-240=144
Answer:
Step-by-step explanation:
Add up all the values for the height and divide by 9. do the same for the leaf scars.
